ITEM NAME:XH-M189 2 * 50W high-end digital amplifier board DC24V TPA3116D2 I6B2 XH-M189 2 * 50W high-end digital amplifier board DC24V TPA3116D2 two-channel stereo amplifier board I6B2 Audio type: TPA3116D2 Input voltage: DC 5-24V Operating frequency: 20Hz-20Hz Output Type: Dual Channel; Stereo material: metal Machine size: 84 * 51 * 29mm (without potentiometer) color: red Package Contents: 1 x Digital Amplifier Board Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.